A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of an Overlay Design Procedure for Flexible Pavements in Indiana
A Procedure for designing the thickness of asphaltic concrete overlays of flexible pavements was developed at Purdue University in response to a request from the Indiana Department of Highways (IDOH). The research included testing on 30 flexible pavement test sections. Two approaches to the problem were taken: an empirical approach which calculates the overlay thickness required to provide functional performance (ride quality and resistance to distress) over the life of the pavement, and a structural overlay method which calculates thickness required to prevent structural failure. Flexible overlay design Method 2 of the 1986 AASHTO Guide for the Design of Pavement Structures was selected for structural capacity design. The functional performance approach used Indiana flexible pavement historical data to produce a regression equation relating overlay thickness to traffic, design life of the overlay, pavement condition at the end of the design life, and estimated subgrade CBR. Various NDT deflection measurements, climate zone data, and pavement layer thickness variables were included in a variety of empirical analyses, but they were not significant in the analyses.
Development of an Overlay Design Procedure for Flexible Pavements in Indiana
A Procedure for designing the thickness of asphaltic concrete overlays of flexible pavements was developed at Purdue University in response to a request from the Indiana Department of Highways (IDOH). The research included testing on 30 flexible pavement test sections. Two approaches to the problem were taken: an empirical approach which calculates the overlay thickness required to provide functional performance (ride quality and resistance to distress) over the life of the pavement, and a structural overlay method which calculates thickness required to prevent structural failure. Flexible overlay design Method 2 of the 1986 AASHTO Guide for the Design of Pavement Structures was selected for structural capacity design. The functional performance approach used Indiana flexible pavement historical data to produce a regression equation relating overlay thickness to traffic, design life of the overlay, pavement condition at the end of the design life, and estimated subgrade CBR. Various NDT deflection measurements, climate zone data, and pavement layer thickness variables were included in a variety of empirical analyses, but they were not significant in the analyses.
Development of an Overlay Design Procedure for Flexible Pavements in Indiana
J. K. Lindly (author) / T. D. White (author)
1987
338 pages
Report
No indication
English
| British Library Online Contents | 1993